During completion of the project, you notice that a deliverable, integral to the project has not been received. The seller says that the work is not part of the contract. You remember discussing it during negotiations and even coming to agreement, but you cannot find it in the contract. Which of the following BEST describes this situation?
a) The deliverables may be described in the specifications and not in the contract
b) The deliverable is required to be completed
c) A change to the contract is required in order to get the deliverable
d) The seller is required to complete the deliverable